oracle 测试代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Globalization;
using System.Runtime.InteropServices;
using Oracle.DataAccess;

namespace testjpcn
{
  
    public partial class Form1 : Form
    {
        [DllImport("kernel32.dll", SetLastError = true)]
        static extern int GetThreadLocale();
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Oracle.DataAccess.Client.OracleConnection ocn = new Oracle.DataAccess.Client.OracleConnection();
            ocn.ConnectionString = "User Id=System;Password =oracle;Data Source=ujpcn";
            ocn.Open();
            Oracle.DataAccess.Client.OracleCommand ocmd = new Oracle.DataAccess.Client.OracleCommand();
            ocmd.CommandText = "INSERT INTO TEST (ID,MEMO) VALUES('" + System.DateTime.Now.ToLongTimeString() + "','" + textBox1.Text+"')";
             
            ocmd.Connection = ocn;
            ocmd.ExecuteNonQuery();

            Oracle.DataAccess.Client.OracleDataAdapter odp = new Oracle.DataAccess.Client.OracleDataAdapter();
            DataSet ds = new DataSet();
            Oracle.DataAccess.Client.OracleCommand ocmd1 = new Oracle.DataAccess.Client.OracleCommand();
            ocmd1.CommandText = "select * from test";
            ocmd1.Connection = ocn;
            odp.SelectCommand = ocmd1;
            odp.Fill(ds);
            this.dataGridView1.DataSource = ds.Tables[0];
        
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            CultureInfo cInfo = CultureInfo.GetCultureInfo(GetThreadLocale());
            this.label2.Text = cInfo.CompareInfo.Name.ToString();

            Oracle.DataAccess.Client.OracleConnection ocn = new Oracle.DataAccess.Client.OracleConnection();
            ocn.ConnectionString = "User Id=System;Password =oracle;Data Source=ujpcn";
            ocn.Open();
            Oracle.DataAccess.Client.OracleCommand ocmd= new Oracle.DataAccess.Client.OracleCommand();
            ocmd.CommandText = "select * from test";
            ocmd.Connection = ocn;
            Oracle.DataAccess.Client.OracleDataAdapter odp = new Oracle.DataAccess.Client.OracleDataAdapter();
            
            DataSet ds = new DataSet();
            odp.SelectCommand = ocmd;
 
            odp.Fill(ds);
            this.dataGridView1.DataSource = ds.Tables[0]; 
           
           
        }
    }
}